增加组件的旋转

src/main/java/dev/bytevibe/hyperpoint/DrawableObject.java

@@ -12,6 +12,7 @@ public abstract class DrawableObject implements Serializable {
     protected double height;
     protected String id;
     protected boolean selected;
+    protected double rotation = 0; 
 
     public DrawableObject(double x, double y, double width, double height) {
         this.x = x;
@@ -70,6 +71,14 @@ public abstract class DrawableObject implements Serializable {
         this.selected = selected;
     }
 
+    public double getRotation() {
+        return rotation;
+    }
+
+    public void setRotation(double rotation) {
+        this.rotation = (rotation % 360 + 360) % 360;
+    }
+
     /**
      * 检查点是否在对象内
      */

src/main/java/dev/bytevibe/hyperpoint/DrawingCanvas.java

@@ -274,6 +274,19 @@ public class DrawingCanvas extends Pane {
      * 绘制单个对象
      */
     private void drawObject(GraphicsContext gc, DrawableObject obj, boolean selected) {
+    // 保存当前状态
+    gc.save();
+    
+    // 计算旋转中心（对象中心）
+    double centerX = obj.getX() + obj.getWidth() / 2;
+    double centerY = obj.getY() + obj.getHeight() / 2;
+    
+    // 应用旋转
+    gc.translate(centerX, centerY);
+    gc.rotate(obj.getRotation());
+    gc.translate(-centerX, -centerY);
+    
+    // 绘制具体对象
     if (obj instanceof TextObject) {
         drawTextObject(gc, (TextObject) obj, selected);
     } else if (obj instanceof ShapeObject) {
@@ -281,7 +294,10 @@ public class DrawingCanvas extends Pane {
     } else if (obj instanceof ImageObject) {
         drawImageObject(gc, (ImageObject) obj, selected);
     }
-    }
+    
+    // 恢复状态
+    gc.restore();
+}
 
     /**
      * 绘制文本对象

src/main/java/dev/bytevibe/hyperpoint/JsonSerializationUtil.java

@@ -1,10 +1,16 @@
 package dev.bytevibe.hyperpoint;
 
-import com.google.gson.*;
+import java.io.File;
-import javafx.scene.paint.Color;
+import java.io.FileReader;
+import java.io.FileWriter;
+import java.io.IOException;
 
-import java.io.*;
+import com.google.gson.Gson;
-import java.util.*;
+import com.google.gson.GsonBuilder;
+import com.google.gson.JsonArray;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonObject;
+import com.google.gson.JsonParser;
 
 /**
  * JSON序列化工具，用于将演示文稿保存和加载为JSON格式
@@ -180,6 +186,7 @@ public class JsonSerializationUtil {
             ImageObject imgObj = (ImageObject) obj;
             objJson.addProperty("imagePath", imgObj.getImagePath());
         }
+        objJson.addProperty("rotation", obj.getRotation()); // 添加旋转角度
 
         return objJson;
     }
@@ -238,6 +245,11 @@ public class JsonSerializationUtil {
             obj = new ImageObject(x, y, width, height, imagePath);
         }
 
+        // 读取旋转角度并设置
+        if (objJson.has("rotation")) {
+            obj.setRotation(objJson.get("rotation").getAsDouble());
+        }
+
         if (obj != null) {
             obj.setId(id);
         }

src/main/java/dev/bytevibe/hyperpoint/PresentationWindow.java

@@ -584,6 +584,15 @@ public class PresentationWindow {
      * 绘制单个对象
      */
     private void drawObject(GraphicsContext gc, DrawableObject obj) {
+        gc.save();
+
+        double centerX = obj.getX() + obj.getWidth() / 2;
+        double centerY = obj.getY() + obj.getHeight() / 2;
+
+        gc.translate(centerX, centerY);
+        gc.rotate(obj.getRotation());
+        gc.translate(-centerX, -centerY);
+        
         if (obj instanceof TextObject) {
             drawTextObject(gc, (TextObject) obj);
         } else if (obj instanceof ShapeObject) {
@@ -591,6 +600,8 @@ public class PresentationWindow {
         } else if (obj instanceof ImageObject) {
             drawImageObject(gc, (ImageObject) obj);
         }
+
+        gc.restore();
     }
 
     /**

src/main/java/dev/bytevibe/hyperpoint/PropertyPanel.java

@@ -1,16 +1,22 @@
 package dev.bytevibe.hyperpoint;
 
-import javafx.fxml.FXML;
-import javafx.fxml.FXMLLoader;
-import javafx.fxml.Initializable;
-import javafx.scene.control.*;
-import javafx.scene.layout.VBox;
-import javafx.scene.paint.Color;
-
 import java.io.IOException;
 import java.net.URL;
 import java.util.ResourceBundle;
 
+import javafx.fxml.FXML;
+import javafx.fxml.FXMLLoader;
+import javafx.fxml.Initializable;
+import javafx.scene.control.Button;
+import javafx.scene.control.ColorPicker;
+import javafx.scene.control.ComboBox;
+import javafx.scene.control.Label;
+import javafx.scene.control.Slider;
+import javafx.scene.control.Spinner;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.VBox;
+import javafx.scene.paint.Color;
+
 /**
  * 属性编辑面板，用于编辑选中对象的属性
  * 使用FXML加载UI布局
@@ -38,6 +44,10 @@ public class PropertyPanel extends VBox implements Initializable {
     private Spinner<Double> strokeWidthSpinner;
     @FXML
     private Button deleteButton;
+    @FXML
+    private Slider rotationSlider;
+    @FXML
+    private Label rotationValueLabel;
 
     private DrawingCanvas canvas;
 
@@ -80,6 +90,20 @@ public class PropertyPanel extends VBox implements Initializable {
                 "BOLD_ITALIC"
         );
 
+        // 初始化旋转控制
+        rotationSlider.setMin(0);
+        rotationSlider.setMax(360);
+        rotationSlider.setValue(0);
+        rotationSlider.setMajorTickUnit(15);
+        rotationSlider.setMajorTickUnit(90);
+        rotationSlider.setShowTickMarks(true);
+        rotationSlider.setShowTickLabels(true);
+        
+        rotationSlider.valueProperty().addListener((obs, oldVal, newVal) -> {
+            updateRotation();
+            rotationValueLabel.setText(String.format("%.0f°", newVal));
+        });
+
         // 设置默认值
         fontFamilyCombo.setValue("Arial");
         fontStyleCombo.setValue("NORMAL");
@@ -112,6 +136,7 @@ public class PropertyPanel extends VBox implements Initializable {
         DrawableObject selected = canvas.getSelectedObject();
         if (selected == null) {
             setEditingVisible(false);
+            rotationSlider.setDisable(true);
             objectTypeLabel.setText("未选中对象");
             return;
         }
@@ -142,15 +167,31 @@ public class PropertyPanel extends VBox implements Initializable {
             showImageControls();
         }
 
+        rotationSlider.setValue(selected.getRotation());
+        rotationSlider.setDisable(false);
+        rotationValueLabel.setText(String.format("%.0f°", selected.getRotation()));
+
         // 重新添加监听
         textContentField.setOnKeyReleased(e -> updateTextContent());
     }
 
+    /**
+     * 更新旋转
+     */
+    private void updateRotation() {
+        DrawableObject selected = canvas.getSelectedObject();
+        if (selected != null) {
+            selected.setRotation(rotationSlider.getValue());
+            canvas.redraw();
+        }
+    }
+
     /**
      * 显示文本控件
      */
     private void showTextControls() {
         textContentField.setDisable(false);
+        rotationSlider.setDisable(false);
         fontFamilyCombo.setDisable(false);
         fontSizeSpinner.setDisable(false);
         fontStyleCombo.setDisable(false);
@@ -167,6 +208,7 @@ public class PropertyPanel extends VBox implements Initializable {
      */
     private void showShapeControls() {
         textContentField.setDisable(true);
+        rotationSlider.setDisable(false);
         fontFamilyCombo.setDisable(true);
         fontSizeSpinner.setDisable(true);
         fontStyleCombo.setDisable(true);
@@ -183,6 +225,7 @@ public class PropertyPanel extends VBox implements Initializable {
      */
     private void showImageControls() {
         textContentField.setDisable(true);
+        rotationSlider.setDisable(false);
         fontFamilyCombo.setDisable(true);
         fontSizeSpinner.setDisable(true);
         fontStyleCombo.setDisable(true);

src/main/resources/dev/bytevibe/hyperpoint/propertyPanel.fxml

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 
+<?import javafx.scene.control.Slider?>
 <?import javafx.scene.control.Button?>
 <?import javafx.scene.control.ColorPicker?>
 <?import javafx.scene.control.ComboBox?>
@@ -23,6 +24,11 @@
 
     <Separator/>
 
+    <!-- 旋转角度 -->
+    <Slider fx:id="rotationSlider" max="360.0" min="0.0" />
+    <Label text="旋转角度:" />
+    <Label fx:id="rotationValueLabel" text="0°" />
+
     <!-- 文本内容 -->
     <Label text="文本内容:"/>
     <TextField fx:id="textContentField"/>